for-loop

问题 var initialCircle; var i; var randomXPos; var randomYPos; var colorArray; colorArray=[ 'aliceblue','lavender','powderblue','lightblue','lightskyblue','skyblue','deepskyblue','lightsteelblue', 'dodgerblue','cornflowerblue','steelblue','cadetblue','mediumslateblue','slateblue','darkslateblue','royalblue','blue','mediumblue','darkblue','navy','midnightblue','blueviolet', 'indigo']; var randomColor; function startBouncingHoverCircles(){for(i=0;i<5;i++){randomXPos = Math.floor(Math.random() * 1200

问题 I am trying to fill new column values in R data frame based on a condition that compares values from two columns. Using for loop and if-else control statement. Here's my sample dataset Year1 | Year2 ----- | ----- 1990 | 1990 1992 | 1992 1995 | 1998 1997 | 2000 I would like to do something like this: for (i in 1:length(year1) { if (year1[i] == year2[i]) flag = 1 next else flag = 2 } This doesn't seem to be working. For some reason, all the conditions are evaluated as TRUE and flag is always 1.

问题 I have a nested list combine <- list(c('A', 'B', 'C'), c('D', 'H', 'G', 'J'), c('A', 'E')) and a df df <- data.frame(appln_id = c(1, 1, 2, 2, 4, 4, 4, 3, 3, 3, 3, 5, 9, 9), prior_year = c(1997,1997,1997,1997,1997,1997,1997,1998,1998,1998,1998,2000,2000,2000), IPC = c('B','E','E','B','H','J','D','H','J','D','E','A','E','B')) I want to aggregate IPC according to appln_id (eg: for appln_id=1: c('B','E') , for appln_id=2: c('E','B') , for appln_id=4: c('H','J','D') , etc.). Then for each value of

问题 I have a nested list combine <- list(c('A', 'B', 'C'), c('D', 'H', 'G', 'J'), c('A', 'E')) and a df df <- data.frame(appln_id = c(1, 1, 2, 2, 4, 4, 4, 3, 3, 3, 3, 5, 9, 9), prior_year = c(1997,1997,1997,1997,1997,1997,1997,1998,1998,1998,1998,2000,2000,2000), IPC = c('B','E','E','B','H','J','D','H','J','D','E','A','E','B')) I want to aggregate IPC according to appln_id (eg: for appln_id=1: c('B','E') , for appln_id=2: c('E','B') , for appln_id=4: c('H','J','D') , etc.). Then for each value of

问题 I am trying to add the last cash flow back into the par value using a if/else loop, but I can't seem to do it. How do I assign an int to a specific item in the range? I am trying to make it so if the index > 10, it will add the par value back in. par = 1000 coupon_rate = 3 T = 5 freq = 2 def cf_calculator(par, r, T, freq): for i in range(T * freq): if (T) < (T * freq): coupon = (r/100) * par/freq print(coupon) else: coupon = (r/100) * par/freq + par print(coupon) print(cf_calculator(1000,3,5

问题 I have two dataframes. one ( txt.df ) has a column with a text I want to extract phrases from ( text ). The other ( wrd.df ) has a column with the phrases ( phrase ). both are big dataframes with complex texts and strings but lets say: txt.df <- data.frame(id = c(1, 2, 3, 4, 5), text = c("they love cats and dogs", "he is drinking juice", "the child is having a nap on the bed", "they jump on the bed and break it", "the cat is sleeping on the bed")) wrd.df <- data.frame(label = c('a', 'b', 'c',

问题 i have nodemailer code below, its fine and working.My problem is to send individual data to individual email. id_array have two emails and no_array have two individual data, How do i send "1" to prayag@cybrosys.in and "2" to blockchain@cybrosys.net? var id_array = ["prayag@cybrosys.in","blockchain@cybrosys.net"]; var no_array = ["1","2"]; var mailer = require("nodemailer"); // Use Smtp Protocol to send Email var smtpTransport = mailer.createTransport({ service: "Gmail", auth: { user: "mymail

问题 I want to loop over a list in Python and remove particular items. I don't want to make a new list of accepted items, because in my complete example, I want to make a series of refinements to my list. Here is a simple example, in which I try to remove all numbers that are less than 3 in a list. example = [1.,2.,3.,4.,5.,6.] for e in example: if e < 3.: print "Removing:", e example.remove(e) else: print "Accepting:", e print "NAIVE:", example Removing: 1.0 Accepting: 3.0 Accepting: 4.0

问题 i have nodemailer code below, its fine and working.My problem is to send individual data to individual email. id_array have two emails and no_array have two individual data, How do i send "1" to prayag@cybrosys.in and "2" to blockchain@cybrosys.net? var id_array = ["prayag@cybrosys.in","blockchain@cybrosys.net"]; var no_array = ["1","2"]; var mailer = require("nodemailer"); // Use Smtp Protocol to send Email var smtpTransport = mailer.createTransport({ service: "Gmail", auth: { user: "mymail

问题 I have two dataframes. one ( txt.df ) has a column with a text I want to extract phrases from ( text ). The other ( wrd.df ) has a column with the phrases ( phrase ). both are big dataframes with complex texts and strings but lets say: txt.df <- data.frame(id = c(1, 2, 3, 4, 5), text = c("they love cats and dogs", "he is drinking juice", "the child is having a nap on the bed", "they jump on the bed and break it", "the cat is sleeping on the bed")) wrd.df <- data.frame(label = c('a', 'b', 'c',